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UH Hilo students work check acoustic recorders in forest on Â鶹´«Ã½ Island

Researchers at the University of Â鶹´«Ã½ at Hilo are blending artificial intelligence (AI) and culture to help protect some of the state¡¯s most precious native manu (birds). Many of ±á²¹·É²¹¾±ʻ¾±¡¯²õ forest birds are facing extinction, and UH Hilo biology professor Patrick Hart is employing a mix of high-tech tools and Native Hawaiian traditions to support their remaining populations.

Hart¡¯s research, funded by the , uses AI to monitor bird populations in remote forests on Â鶹´«Ã½ Island. By placing acoustic recorders in the forest, Hart¡¯s team captures massive amounts of bird sound to understand where different species are and how they¡¯re doing. Birds use sound as a way to keep track of other birds.

“It is becoming increasingly important to develop landscape-scale management tools to help prevent the decline and extinction of Hawaiian birds,” said Hart, who founded UH ±á¾±±ô´Ç¡¯²õ or LOHE Lab, where data is analyzed. “But, in order for it to be effective, we need better info about how all of the different species are doing and exactly where they are.”

New AI algorithm

This past year, Hart has worked with Google, to develop a new algorithm, “Perch,” designed specifically for recognizing Hawaiian bird songs. With this new technology Perch can identify the unique sounds of Hawaiian birds with limited data, allowing Hart and his team to accurately estimate bird numbers across large areas.

“Hawaiian birds, in particular, are variable in what they say to each other, which is one reason why it has been so hard to train algorithms to automatically detect the songs and calls of these birds,” explained Hart.

Oli composition

red bird
ʻIʻiwi. (Photo credit: Ann Tanimoto-Johnson)

In a parallel effort, Hart is collaborating with ʻĀhuimanu, a group dedicated to native bird conservation, to create a special oli (chant) that uplifts Hawaiian birds. The oli, led by cultural practitioner Kekuhi Kanahele Kealiʻikanakaʻoleohaililani, connects each bird to thriving elements in nature to promote balance and resilience.

“The mele recalls and reaffirms the relationships between ourselves, the birds, and the other aspects of the environment,” explained ʻĀhuimanu member Noah Gomes.

Critically endangered

green and yellow bird in a tree
ʻAmakihi. (Photo credit: Ann Tanimoto-Johnson)

2024 marks Makahiki O N¨¡ Manu Nahele: Year of the Forest Birds. Of the 84 Hawaiian forest bird species known from observation and fossil records, 58 have vanished forever. Today, 24 of the remaining 26 species are endangered, with statuses ranging from “vulnerable” to “critically endangered.” Four honeycreeper species—ʻakikiki, ʻakekeʻe, kiwikiu and ʻākohekohe—face a high risk of extinction within the next decade if significant conservation measures are not taken.

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